//-->
Skewed VNS enclosing second order algorithm for the degree constrained minimum spanning tree problem
Souza, Mauricio C. de, (2008)
VNS and second order heuristics for the min-degree constrained minimum spanning tree problem
Martins, Pedro, (2009)
Formulations and a Lagrangian relaxation approach for the prize collecting traveling salesman problem
Pantuza, Guido, (2021)